Warp-beam for looms.



No. 858,761. PATBNTED- JULY 2, 1907.

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WARP BEAM FOR Looms.

APPLICATION FILED JAN. 22. 1907.

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PATENTED JULY 2, 1907.

E.. H. RYON. WARP BEAM FOR LOOMS. APPLICATION FILED JAN. 22,1907. pBEETS-SHEET 2. l H 1.1m] 6 F512;? q u Qg T9 v gg ro 1/ w m -H l" "m" h"Tm: NORRIS PETERS ca, wAsnmcrou, D- c.

UNITED STATES PATENT OFFICE.

EFPA H. RYON, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO CROMPTON &KNOWLES LOOM WORKS, A CORPORATION OF MASSACHUSETTS.

WARP-BEAM FOR LOOMS.

Specification of Letters Patent.

Patented July 2, 1907.

Application filed January 22,1907. Serial No. 358,469.

To all whom it may concern:

Be it known that I, Er l A H. RYoN, a citizen of the United States,residing at Worcester, in the county of Worcester and State ofMassachusetts, have invented certain new and useful Improvements inWarp-Beamsfor Looms, of which the following is a specification.

'My invention relates to warp beams for looms, and more particularly toa let off and brake motion for a warp beam, which is particularlyadapted to be used in case of light warps, as silk and cotton.

The object of my invention is to provide an improved let off and brakemotion for a warp beam, by means of which an easy, even, and smooth letoff motion for the warp beam, and also a spring tension or brake motionfor the warp beam is obtained, and the warp beam is turned back, whenthe warp is slackened and false filling has to be cut out, etc.

In my improvements I use a single helically coiled spring, which acts asan expansion spring, and also as a torsional spring; said spring holdsthe frictional disk of the brake motion in engagement with the disk orhead on the warp beam, and also turns the same backward when the warp isslackened. I

I have shown in the drawings a warp beam detached from a loom, andmounted on supporting beam stands, and having my improvements combinedtherewith.

Referring to the drawings :Figure 1 shows two beam stands, and a warpbeam with my improvements combined therewith. Fig. 2 is an end view ofthe parts shown in Fig. 1, looking in the direction of arrow a, samefigure. Fig. 3 shows, on an enlarged scale, the parts shown in the upperpart of Fig. 2. Fig. 4 is a partial section, on line 4, 4, Fig. 3,looking in the direction of arrow 1), same figure. Fig. 5 is a section,on line 5, 5, Fig. 4, looking in the direction of arrow 0, same figure.Fig. 6 is a partial vertical section of the parts shown at the right inFig. 4; the supporting beam stand is not shown in this figure.

In the accompanying drawings, 1 and 1 are the two beam stands, in thisinstance shown as made separate from the loom, and adapted to be boltedor secured to the floor, and connected together by a transverse rod 2.The upper ends of the beam stands 1 and 1 have bear ings 1 for the shaft3, carrying the warp beam 4 fast thereon. The warp beam 4 has fast onone end a disk 5, forming the warp beam head. A second disk 6 is looselymounted on the shaft 3, and has a friction face 6 thereon, adapted toengage the friction face 5 on the disk or beam head 5. The disk 6 has aprojection or lug 6 thereon, which is adapted to extend between the forkor yoke shaped end 7 of an arm 7, which is loosely mounted on a threadedcollar, to be hereinafter described. One of the ends of the fork shapedend 7 ofthe arm 7, carries an adjusting screw 9, which may be turned inor out in a threaded hole in said end, and secured in its adjustedposition by a nut 10. The inner end of the adjusting screw 9 is adaptedto engage the lug 6 'i The lower end of the arm 7 has an open end slot 7therein, through which extends a stud 11 secured in the beam head stand1 Loosely mounted on the shaft 3 of the beam 4 is a collar or sleeve 12,having an external thread thereon.

The threaded collar 12 has an elongated groove or recess 12 therein,into which extends the lower end of a plate 13, secured in a slot oropening in the arm 7,

by a bolt 8 see Fig. 6. Through the plate 13 extending into theelongated groove or recess 12 in the threaded collar 12, said collar isprevented from turning on the shaft 3.

Encircling the threaded collar 1.2 is a helically coiled expansion andtorsional spring 14, one end of which is secured to the disk 6, byextending into one of a series of holes 6 therein, and the other end tothe arm 7, see Fig. 6. By means of the holes 6, the tension of saidspring may be adjusted. A nut 15 is mounted on the threaded collar 12,and adapted to be turned thereon to compress the spring 14, and increasethe frictional engagement between the disks 5 and 6, or turned in theopposite direction to reduce the frictional engagement between saiddisks.

A bushing 16 is mounted on the reduced end of the warp beam shaft 3,'seeFig. 6, and is held thereon by a nut 17. The inner end of the bushing 16has an annular projection or flange 16 thereon, which bears against theouter end of the threaded collar 12. The bushing 16 forms a journal forthe warp beam shaft 3, at one end thereof, and is loosely mounted in theopen end slot on the upper end of the beam stand 1 In the operation ofthe loom, and the drawing off of the warps from the warp beam 4, thewarps are drawn off in the direction of the arrow, Figs. 2, and 3, andthe tension of the warps will rotate the warp beam 4, and with the head5 thereon in frictional engagement with the disk 6 through the action ofthe expansion spring 14, will rotate the disk 6, and cause the lug 6thereon to move away from the adjusting screw 9, and

1 engage the opposite end of the fork shaped end 7 of the arm 7. Thestud 11 engaging the arm 7, will hold the I arm 7 stationary and preventany rotary movement thereof, so that after the lug 6 has engaged theother end of the forked end 7 of the arm 7, the disk 6 will be preventedfrom further rotation, and will act as a tension or brake motion,through the spring 14 forcing the disk 6 into frictional engagement withthe disk or beam head 5. When the warp is slackened, the spring 14 willact as a torsional spring to turn the disk 6, and also the disk 5 andwarp beam 4 backward. The adjustment of the nut 15 on the threadedcollar 12, as above stated, will regulate the action of the spring 14.

By means of my improvements, the warp threads as they are drawn off fromthe warp beam will have a light tension which may be regulated asdesired, and there Will be a smooth and even let off movement of thewarp beam, and the single spring 14 acts to apply friction between thedisks 6 and 5, and also to cause thedisks 6 and 5, and the warp beam 4to turn backward when the warp is slackened.

It will be understood that the details of construction of myimprovements may be varied if desired.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:

1. In a brake motion for warp beams, a beam, a friction disk thereon, asecond disk, and a single helically coiled spring, acting as anexpansion spring, and also as a torsional spring to hold said disks infrictional engage ment and to turn said disks and beam backward when thewarp is slackened.

2. In a warp beam let ott and brake mechanism, the combination with afriction beam head, of a friction disk loosely mounted on the shaft orjournal of the warp beam and said shaft or journal, and said diskhaving" a projection thereon to extend between the fork or yokeshapedend of an arm, and said arm loosely mounted on a threaded collar orsleeve, and held from rotating thereon, and said threaded collar looseon the shaft or journal of the warp beam, and held from rotatingthereon,and a helically coiled spring encircling said threaded collar andconnected with said friction disk having a projection thereon, and withsaid arm, and means for adjusting the tension of said spring.

3. In a warp beam let off and brake mechanism, the combination with afriction beam head, of a friction disk loosely mounted on the shaft orjournal of, the warp beam and said shaft or journal, and said diskhaving a projee tion thereon to extend between the fork or yoke shapedend of an arm carrying an adjustin gscrew, and said arm loosely mountedon a threaded collar or sleeve. and held from rotating thereon, and saidthreaded eollar loose on the shaft or journal of the warp beam, and heldfrom ro tating thereon, and a helically coiled spring encircling; saidthreaded collar and connected with said friction disk having aprojection thereon, and with said arm, and means for adjusting thetension of said spring.

lGllA ll. hYON.

Witnesses J. C. DEWEY, M. Haas.

